CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Hafiz Nabeel Ahmad,Yueyuan Yong,Noshaba Munawar,Xinxin Huang,Anzal Akbar,Jie Zhu
MIL-100(Fe) was successfully synthesized at room temperature and incorporated in bilayer film matrix. • MOFs and betalain generate molecular interactions within the film matrix as a filler. • Active films exhibited strong barrier, antioxidant and antibacterial properties. • These films prolonged the shelf life of beef and can be used for beef freshness monitoring. • This study offers novel insights into the development of active, smart food packaging. Meat is prone to microbial spoilage and faces significant risks from foodborne illnesses. This study introduces an innovative approach utilizing metallic organic frameworks (MOFs) as antibacterial agents and beetroot extract (BTE) for pH sensitivity to address existing challenges. Furthermore, this study utilized tri-polymeric concept via protein-polysaccharide combination, which includes sodium alginate to stabilize betalain, and gelatin and chitosan to give strong mechanical properties. The MOFs were synthesized using green synthesis, confirmed through structural and multispectral analysis. Betalain extracted from beetroot was incorporated into these tri-polymeric films. The developed films demonstrated excellent antioxidant and antibacterial properties. Furthermore, the pH sensitivity of betalain renders these films suitable for use as biosensors, with the quality stage of beef successfully assessed. Moreover, the films exhibited strong UV, water, and oxygen barrier properties. Atomic force microscopy revealed differences in surface morphology, with a uniform distribution, and films showed high mechanical strength. Concurrently, the addition of MOFs and BTE extract potentially extended the shelf life of beef by up to three days compared to control tri-polymeric films. These multifunctional films present new strategies employing novel antibacterial materials and tri-polymeric combinations which can efficiently preserve beef quality, while BTE indicates spoilage in real time. Download: Download high-res image (362KB) Download: Download full-size image
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Journal of Environmental Chemical Engineering
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2026
·Vol. 14
·期 3
·122692
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IF 7.5
Huanggen Yang,Shulun Yin,Pei Zhang,Qi Zheng,Faisal Alresheedi,Imran Shakir,Saleem Raza,Duofu Li,Yan Sui
The energy crisis calls for eco-friendly alternatives, and hydrogen production presents a viable solution. As a clean energy source, hydrogen can be produced from water using renewable power, decreasing dependence on fossil fuels and substantially cutting greenhouse gas emissions paving the way for a greener future. This work involves the fabrication of Ti 3 C 2 T x and NH 2 -MIL-125(Ti) by hydrothermal procedures. Ti 3 C 2 T x material served as the substrate for the immobilization of NH 2 -MIL-125(Ti), which were then incorporated into sodium alginate to generate (Ti 3 C 2 T x @NH 2 -MIL-125(Ti)-SA). The electrocatalytic efficacy of Ti 3 C 2 T x @NH 2 -MIL-125(Ti)-SA was evaluated for the hydrogen evolution reaction (HER) under alkaline factors using a 1 M KOH electrolyte. The material demonstrated exceptional capacitance, impressive rate capability, and sustained stability during 1000 cycles over a 24 and 48 h. The Ti₃C₂Tₓ@NH₂-MIL-125(Ti)-SA composite exhibits excellent HER catalytic activity in alkaline media, delivering a low overpotential of 14 mV at 10 mA cm⁻² and a Tafel slope of 56.4 mV dec⁻¹ . Although the benchmark Pt/C catalyst shows slightly superior performance (12 mV, 41.1 mV dec⁻¹), the developed composite demonstrates comparable activity, along with advantages of structural stability and cost-effectiveness compared to noble metal-based catalysts. Overall, Ti 3 C 2 T x @NH 2 -MIL-125(Ti)-SA demonstrates excellent electrode performance in alkaline conditions, as compared with pristine Ti 3 C 2 T x and NH 2 -MIL-125(Ti), which marked by remarkable stability, low Tafel slope values, and minimized overpotentials, underscoring its significant promise for efficient water splitting applications.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2023
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IF 5.2
Lijun Gao,Dongmei Han,Zhihua Wang,Fubo Gu
Tubular carbon-covered cobalt-doped bi-crystalline phase In 2 O 3 (denoted as CoInO-x) was synthesized by one-step calcination of the metal-organic framework cobalt-doped MIL-68(In)-NH 2 precursor. The photocatalytic activity of CoInO-x was investigated using tetracycline hydrochloride (TCH) degradation. The removal of TCH by CoInO-500 obtained by calcination at 500 °C under visible light irradiation was 90.1% after 70 min, which was significantly higher than that of In 2 O 3 . The reaction rate constant of CoInO-500 was 11.02 times higher than that of In 2 O 3 and could maintain a better photocatalytic performance after four cycles. The effects of photocatalyst dosing, pH, and inorganic anions on photocatalytic degradation were studied. The mechanism of photocatalytic degradation was analyzed in detail by reactive radical trapping experiments, Mott-Schottky measurements, and electron paramagnetic resonance (EPR) signal characterization. Enhanced photocatalytic performance is mostly attributed to the cobalt doping creating impurity energy levels and narrowing the forbidden bandwidth of In 2 O 3 , enhancing the visible light utilization and the photogenerated charge separation efficiency. Carbon covering can serve as a bridge for charge transport, accelerating the rapid transport of photogenerated charges.
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JOURNAL OF MEMBRANE SCIENCE
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2023
·
IF 9.5
Rehan Khan,Wei-Min Liu,Ihtisham Ul Haq,Hong-Gang Zhen,Heng Mao,Zhi-Ping Zhao
Pyridine is generally found in the effluents from the synthesis of paints, rubber chemicals, vitamins, and pesticides. This study focused on improving the pervaporation (PV) performance of polyether block-amide (PEBA-2533) membranes cast on polyvinylidene fluoride (PVDF) substrate, by incorporating the MIL-53 (Al) particles to prepare mixed matrix membranes (MMMs) for pyridine separation from the aqueous solution. MIL-53 (Al) has a larger aperture size (8.5 Å) than the molecular size of the pyridine (6.0 Å), which could allow pyridine molecules to efficiently pass through its channels. The coadjacent MIL-53 particles created relatively continuous permeation pathways for the penetrants in the MMMs, which substantially enhanced the separation performance. Impressively, the resultant MMMs displayed superior pyridine separation performance at complex conditions. At 65 °C and 0.5 wt% pyridine aqueous solution, the separation factor and pyridine flux of PEBA/PVDF membrane were 17.3 and 143.5 g m −2 h −1 , which were improved using MIL-53@PEBA/PVDF MMMs to 48.1 and 226.9 g m −2 h −1 , respectively. Owing to the enhanced pyridine affinity, hydrophobic property, and thermal robustness, the resultant MMMs overcame the inherent trade-off between selectivity and permeability, and also displayed the promising long-term stability. These findings may provide valuable insights for developing novel MMMs with superior separation performance.
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APPLIED SURFACE SCIENCE
·
2023
·
IF 6.7
Haopeng Jiang,Xiaohui Yu,Jinhe Li,Lele Wang,Weikang Wang,Chunxia Wu,Liyong Tang,Qinqin Liu
Herein, a NH 2 -MIL-125(Ti)@Ag@AgCl (NM@Ag@AgCl) stacked core–shell heterojunction with Z-scheme carrier transfer mechanism was developed to fulfil the goal of synchronous reactions of CO 2 reduction and H 2 O oxidation. In detail, the NM@Ag@AgCl was obtained by in-situ loading the AgCl as the shell-inorganic semiconductor on the octahedral NM as the core-organic semiconductor, followed by in-situ transforming part of the AgCl shell into the plasmonic Ag nanoparticles using a photo-reduction method. As a result, the interface effects of core–shell architecture majorized by the Ag electronic mediator can favor the transmission of photogenerated carriers and reduce electron transport resistance; while the plasmonic Ag mediated Z-scheme mode with a giant internal electronic field provided a strong driving force to recombine the carriers with weak redox ability, reserving the carrier with strong redox ability on the NH 2 -MIL-125-core and AgCl-shell for the simultaneous reactions. The CO and H 2 O 2 yields of the optimal NM@Ag@AgCl were 6.02 and 5.43 μmol⋅g −1 ⋅h −1 , which were 3.31 and 4.02 times that of the NM, respectively. This study furnishes a novel thread for the design of core–shell organic–inorganic heterojunction with high interfacial charge transfer for realizing the simultaneous reactions.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2022
·
IF 9.136
Yanqing Cong,Yanan Li,Xiaoran Wang,Xing Wei,Lin Che,Shi-Wen Lv
In this study, a double p-n heterojunction based on g-C 3 N 4 @NiO/Ni@MIL-101 ternary composite was successfully prepared by a feasible method. Results suggested that the rational growth of NiO and MIL-101 on the surface of g-C 3 N 4 can improve the absorption capacity for visible light. Importantly, the formation of double p-n heterojunction can effectively inhibit the recombination of photogenerated electrons and holes. Due to the significant Fermi level differences among NiO, MIL-101 and g-C 3 N 4 , the internal electric fields were established on the interface after constructing the composite, consequently reducing the electrical resistance and accelerating the transfer of photoinduced charge carriers. As expected, the g-C 3 N 4 @NiO/Ni@MIL-101 ternary composite with good stability had excellent photocatalytic performance in the degradation of emerging pollutants, and the removal efficiency of ibuprofen was as high as 95.6%. The •O 2 − , •OH and 1 O 2 were the major active species in the reaction system. Furthermore, developed photocatalytic oxidation system can also achieve the rapid inactivation of bacteria. Based on the synergistic effects of energy band position and double internal electric fields, the separation and transfer of photogenerated charge carriers followed a traditional type-II route. In short, current work not only constructed a promising photocatalyst, but also shared an effective strategy for boosting the photocatalytic activity.
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JOURNAL OF MOLECULAR STRUCTURE
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2022
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IF 3.841
Lulu Wang,Jing Lu,Yujia Wang,Haiyan Wang,Jilin Wang,Tieqiang Ren
In this study, a series of MIL-101-X catalysts were prepared by confining acidic ionic liquid phosphotungstate in MIL-101 nanocages using the organic electron-rich N-heterocyclic compound as a chemical bridge and the aforementioned catalysts were used for the oxidation of cyclohexene to adipic acid. During the aforementioned process of post-synthetic modification, a Bronsted acidic ionic liquid phosphotungstate ([C 3 SO 3 Hnhm] 3 PW 12 O 40 ) was synthesized in the nanocage of MIL-101. The research results reveal that the yield of adipic acid for the cyclohexene oxidation catalyzed by the constructed MIL-101-X catalyst was up to 78.16% in solvent-free condition. And its catalytic activity is not significantly reduced after six cycles. The novel catalyst synthesized in this paper combines the common advantages of ionic liquid phosphotungstate and MIL-101 nanocage microenvironment to facilitate the diffusion of reactants and their interaction with the catalytic activity center. This research will provide a new idea to solve the problem in terms of the shortage of efficient catalysts in the field of catalytic oxidation of cyclohexene to adipic acid.
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CELLULOSE
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2022
·Vol. 29
·期 2
·1017-1034
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IF 6.123
Sun Lijian,Qian Xueren,An Xianhui
Cellulose-based bioplastics with degradability and remarkable mechanical performance have recently attracted increasing attention. As a high-performance material, cellulose-based bioplastics have a strong potential to replace synthetic plastic substrates in many applications. However, its poor shielding performance to UV light limit its application. In this work, transparent and UV-blocking MIL-68(In)-NH 2 @cellulose bioplastic (M(In)CBP) sheets are fabricated via a featured processing method, i.e., cellulose liquefaction, rapid solidification, in-situ synthesis and hot-press drying. The as-obtained functional bioplastic sheet (M(In)CBP1) exhibits high visible-light transparence (74.7% a 600 nm) and the existence of MIL-68(In)-NH 2 allows superior UV-blocking ability (below 400 nm, transmittance was under 4%). The M(In)CBP sheets show high photostability even after continuous UV irradiation (365 nm) for over 12 h. The superior UV-shielding performance is attributed to the uniform distribution and the high UV absorbance of MIL-68(In)-NH 2 in M(In)CBP sheets. High resistance to penetration by aqueous/nonaqueous liquids was proved. Moreover, the M(In)CBP sheets also show excellent mechanical properties and thermal stability. The present work designed a UV-blocking bioplastic constructed from cellulose and MIL-68(In)-NH 2 , which is potential candidates to replace synthetic plastics in many advanced applications such as a UV protection layer for electronic products, or useful as packaging materials to prevent food spoilage. Graphical abstract
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SENSORS AND ACTUATORS B-CHEMICAL
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2023
·
IF 8.4
Wenyuan Li,Xiaoting Yu,Ying Tang,Zian Li,Syed Jalil Shah,Yuying Liu,Hanqing Zhao,Mingxin Song,Junjie Li,Guanchen Wang,Liqin Zhou,Zhongxing Zhao,Suya Liu,Zhenxia Zhao
Fabrication a reusable and highly sensitive fluorescence sensor in a controllable manner for water detection in solvents and humidity remains a top priority target yet a challenging task. In this work, carbon dots (CDs) are successfully implanted into confined metal–organic framework MIL-101(Cr) cages via “ship in the bottle” strategy and the confined CDs are firstly observed in MIL-101(Cr) cage showing high dispersion and high N content by advanced iDPC STEM technique. The highly selective water capture and sensitive changes of the fluorescence property with solution polarity and hydrogen-bonding donor acidity efficiently enhance the detection sensitivity and realize reusable turn-on detection based on the adsorption-solvent synergistic mechanism. Consequently, CDs@MIL-101 exhibits high sensitivity (detection limit: 0.036% and 0.028% v/v), wide response range (0.04–100% and 0.03–45%) and reusable stability for liquid water detection in acetone and tetrahydrofuran , respectively. Meanwhile, it can also detect gaseous water and the detection range is 23% to 85%. The analysis of real samples confirms the proposed method. Such construction strategy and detection mechanism will offer guidance for optimizing and expanding the detection performance of CDs, which is of great significance in the design and construction of novel multiphase sensors.
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APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
·
2021
·Vol. 127
·期 12
·1-11
·
IF 2.584
Fu Manjun,Chai Bo,Yan Juntao,Wang Chunlei,Fan Guozhi,Song Guangsen,Xu Fang
Hydrogen peroxide (H 2 O 2 ) was widely applied as the bactericide and bleach agent in food industry due to its strong oxidation, whose residue had also posed a hazard to public health at the same time. Therefore, it was indispensable to establish a simple, highly effective and accurate method for the detection of H 2 O 2 in foods. Herein, the MIL-88B-Fe metal–organic framework (MOF) was prepared by a facile solvothermal process and utilized as the peroxidase mimic for H 2 O 2 detection. The resultant MIL-88B-Fe MOF exhibited an excellent peroxidase mimetic activity to effectively catalyse the oxidation of 3,3’,5,5’-tetramethylbenzidine (TMB) in the presence of H 2 O 2 , generating a blue coloured product. Under the optimal testing conditions, the linear absorbance response is well correlated with the H 2 O 2 concentration ranging from 10 to 100 μM with a detection limit of 0.60 μM. The catalytic kinetic assay suggested that the MIL-88B-Fe MOF possessed the higher affinity towards both the substrate TMB and H 2 O 2 than horseradish peroxidase. Moreover, the MIL-88B-Fe MOF also displayed a high selectivity and anti-interference performance towards H 2 O 2 detection. In addition, the peroxidase mimetic catalytic oxidation TMB mechanism over the MIL-88B-Fe MOF was clarified by the photoluminescence test. Benefitting from the sensitive response and good anti-interference capacity, this method was applied in real milk and beer samples for H 2 O 2 detection and showed a favourable reproducibility and feasibility. These results indicated that the proposed method based on MIL-88B-Fe as peroxidase mimic might be a promising candidate for H 2 O 2 detection in food field.
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CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Guiming Xie,Xingyang Bai,Yi Man,Pengju Ren,Rongrong Jin,Runduo Zhang,Kostya (Ken) Ostrikov,Zhou-jun Wang,Qingyuan Yang
Innovative catalyst design and in-depth mechanism understanding are imperative for industrialization of CO 2 hydrogenation to methanol. Herein, Al-doped Cu/ZnO catalysts, Cu/Al-ZnO-x (x = 1/32, 1/16 and 1/8, denoting Al/Zn molar ratio), were creatively synthesized using MIL-53(Al) as Al sources and reactive templates. The Cu/Al-ZnO-1/16 catalyst exhibited the highest methanol production rate among the Cu/Al-ZnO-x catalysts, which was 1.93 times as active as the conventional Cu/Al-ZnO-1/16-C catalyst using Al(NO 3 ) 3 ·9H 2 O as Al source. Structural characterizations reveal that the use of MIL-53(Al) led to higher S BET , more uniform Al distribution, more abundant oxygen vacancies, more appropriate metal-support interactions and larger amount of medium basic sites. Mechanism studies demonstrate that Al doping would markedly induce oxygen vacancy formation on Cu-ZnO interfaces and thus significantly boost methanol synthesis activity. This work offers a facile approach to develop efficient methanol synthesis catalysts and provides new insights into the nature of Al promotion in Cu/ZnO-based catalysts.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2023
·
IF 8.6
Si Duan,Yuan Gao,Guihong Lan,Haiyan Qiu,Bo Xu,Zhuang Xie,Songsong Xue,Tianxiong Ou
The widespread use of chlortetracycline hydrochloride (CTC) inevitably poses a potential threat to human health and the biological system, and its environmental pollution and ecotoxicological effects cannot be ignored. Herein, we adopted an in-situ growth method to immobilize the powder form of MIL-100(Fe) adsorbent into low-cost chitosan (CS) matrix for the CTC removal. Metal hydroxide (or metal oxide)/CS beads from the acid-dissolved/alkali-solidified self-sphering shaping method were employed as the substrates for MIL-100(Fe) immobilization, allowing it grow uniformly and stably. Notably, this strategy not only reduced the loss in the separation and regeneration process of powdery MIL-100(Fe), but also improved the adsorption capacity of the CS. Isotherm and kinetic studies showed that the Freundlich and PSO models can describe the experimental data better, respectively, and the maximum adsorption capacity of Langmuir can reach 578.03 mg g −1 . Further, the performance of MIL-100@CS-2 composite beads was thoroughly explored by batch experiments and response surface methodology (RSM) to obtain the optimized operating conditions with the highest CTC removal rate. By combining the density functional theory (DFT) calculation with experimental analysis, the adsorption mechanisms of pore filling, hydrogen bonding , electrostatic interaction , π-π EDA interaction, and hydrophilic interaction were proposed. This work provides a reliable basis for the development of shaping adsorbents and has potential application prospects in the treatment of wastewater containing antibiotics.
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